.paper__update__container {
    background: $--background-color-base;
    padding-bottom: 1px;
    height: 100vh;
    overflow: hidden;
    .header {
      background: $--color-primary;
      padding: 0 80px;
      display: flex;
      height: 60px;
      line-height: 60px;
      position: fixed;
        left: 0;
        top: 0;
        width: 100%;
        height: 60px;
        z-index: 10;
    }
    .btns {
      margin-left: 30px;
      button {
        color: #72b22a;
        padding: 10px 23px;
        input {
          display: none;
        }
      }
      .keep_btns {
          color: #fff;
      }
    }
    .el-icon-back {
        position: fixed;
        top: 17px;
        left: 30px;
        font-size: 24px;
        color: #fff;
    }
    .tabs_box {
      flex: auto;
      color: #fff;
      font-size: 18px;
      ul {
        display: inline-block;
      }
      li {
        float: left;
        padding: 0 20px;
        color: #fff;
        font-size: 18px;
        list-style: none;
        position: relative;
        cursor: pointer;
        &.active::after {
          content: '';
          display: block;
          width: 100%;
          height: 6px;
          background: #FAAD14;
          border-radius: 3px;
          position: absolute;
          bottom: 0;
          left: 50%;
          transform: translateX(-50%);
        }
      }
    }

    .papers-content {
        background: #fff;
        height: 890px;
        margin-top: 60px;
        display: flex;
        .content-lesson {
            transition: width 2s;
            z-index: 0;
            box-shadow: -5px 0 10px -5px  rgba(45, 113, 183, 0.15);
            padding-top:20px;
            width: 308px;
            // height: 310px;
            background: #FFF;
            position: relative;
            overflow: auto;
            .menu-btns {
                width: 20px;
                height: 60px;
                color: #fff;
                background: #999;
                text-align: center;
                position: absolute;
                left: -20px;
                top: 47%;
                padding-top: 10px;
                cursor: pointer;
            }
            .body_content {
                margin: 0px 15px 0px 15px;
                border-radius: 40px 6px 6px 6px;
                background: linear-gradient(to top, rgba(255, 249, 237, 1) 90%, rgba(250, 173, 20, 0.3) 100%) !important;
                .lesson-my {
                    width: 111px;
                    height: 36px;
                    background: linear-gradient(270deg, rgba(250, 173, 20, 0.25) 0%, rgba(250, 173, 20, 0.6) 100%) !important;
                    border-radius: 40px 100px 100px 0px;
                    line-height: 36px;
                    color: rgba(159, 110, 12, 1);
                }
                .lesson-info {
                    overflow: auto;
                    padding: 10px 10px;
                    .lesson-result {
                        width: 78px;
                        height: 24px;
                        background: #fff;
                    }
                    p {
                        margin-top: 10px;
                        .lesson-result {
                            display: inline-block;
                            width: 78px;
                            height: 24px;
                            background: #FFFFFF;
                            line-height: 24px;
                            border-radius: 3px;
                            .lesson-radius {
                                width: 4px;
                                height: 4px;
                            }
                        }
                    }
                    div {
                        margin-top: 18px;
                        .lesson-span {
                            vertical-align: middle;
                            display: inline-block;
                            width: 40px;
                            height: 40px;
                            line-height: 40px;
                            background: #FFFFFF;
                            border-radius: 50%;
                        }
                        .lesson-right-span {
                            margin-right: 26px;
                            font-size: 18px;
                            text-align: center;
                            font-family: DINAlternate-Bold, DINAlternate;
                            font-weight: bold;
                        }
                        p {
                        }
                    }
                    & > .pW {
                        font-weight: 600;
                    }
                    & > .pIndent {
                        width: 254px;
                        padding: 0px 10px;
                        line-height: 32px;
                        margin-bottom: 10px;
                        background: #fff;
                        font-size: 12px;
                        color: #77808D;
                    }
                    .img_dv_auto {
                        overflow: auto;
                        width: 100%;
                        height: 79px;
                        .img_dv {
                            display: inline-block;
                            width: 122px;
                            border: 1px dashed rgba(252, 81, 79, 1);
                            height: 79px;
                            margin-right: 4px;
                            cursor: pointer;
                            & > :deep(img) {
                                width: 100%;
                                height: 100%;
                                background-repeat: no-repeat;
                                box-shadow: 0 1px 4px 0 rgb(0 0 0 / 20%);
                                background-position: 100%, 100%;
                            }
                        }
                    }
                }
            }
            .upload_teach {
                overflow: auto;
                width: 280px;
                max-height: 210px;
                min-height: 50px;
                margin: 15px 15px;
                border-radius: 6px;
                border: 1px solid #72b22a;
                position: relative;
                & > img {
                    position: absolute;
                    left: 0;
                    top: 0;
                    width: 56px;
                    height: 37px;
                }
                & > .bottomColor {
                    background: linear-gradient(-75deg, transparent 15px, #F5F7FA 0);
                    width: 98px;
                    height: 50px;
                }
                & > p > .spanColor {
                    display: inline-block;
                    margin-left: 28px;
                    margin-top: 14px;
                    color: red;
                }
                & > .bottomColorSk {
                    background: linear-gradient(-75deg, transparent 15px, #F5F7FA 0);
                    width: 110px;
                    height: 50px;
                }
                .upload_btns {
                    margin-left: 138px;
                    width: 72px;
                    height: 26px;
                    background: #72b22a;
                    border-radius: 10px;
                    position: relative;
                    right: -60px;
                    top: -24px;
                    img {
                        width: 16px;
                        height: 16px;
                    }
                }
                .upload_btns_speak {
                    margin-left: 110px;
                    width: 72px;
                    height: 26px;
                    background: #72b22a;
                    border-radius: 10px;
                    position: relative;
                    right: -86px;
                    top: -24px;
                    img {
                        width: 16px;
                        height: 16px;
                    }
                }
                & > .upload_imgs {
                    clear:both;
                    display: inline-block;
                    margin: 10px 0px 8px 5px;
                    width: 128px;
                    height: 128px;
                    position: relative;
                    & > img {
                        width: 111px;
                        text-align: center;
                        height: 83px;
                        margin: 0px 10px 10px 8px ;
                        box-shadow: 0 1px 4px 0 rgb(0 0 0 / 20%);
                    }
                     & > p {
                        text-align: center;
                        margin: 0px 10px 10px 8px ;
                    }
                    .btn-preview {
                        position: absolute;
                        top: 0;
                        left: 0;
                        width: 128px;
                        height: 128px;
                        background: rgba(101, 101, 101, 0.6);
                        color: #ffffff;
                        opacity: 0;
                        cursor: pointer;
                        div > .el-icon-search-de {
                            display: block;
                            width: 60px;
                            height: 20px;
                            font-size: 10px;
                            line-height: 20px;
                            background: #FFFFFF;
                            border-radius: 10px;
                            margin: 38px 34px 10px 34px;
                            color: $--color-primary;
                        }
                        & > div > .el-icon-delete-de {
                            width: 60px;
                            display: block;
                            height: 20px;
                            line-height: 20px;
                            font-size: 10px;
                            margin: 0px 34px 0px 34px;
                            background: #FFFFFF;
                            border-radius: 10px;
                            color: aqua;
                        }
                    }
                    .btn-preview div {
                        text-align: center;
                        line-height: 20px;
                    }
                    .btn-preview:hover {
                        opacity: 1;           
                    }
                    // img {
                    //     width: 100%;
                    //     height: 100%;
                    // }
                    & > p  {
                        width: 111px;
                        height: 20px;
                        text-align: center;
                        overflow: hidden;
                        white-space: normal;
                        text-overflow: ellipsis;
                    }
                }
            }
        }
        :deep(.content-lesson-click) {
            width: 0px;
        }
        & > div:nth-child(1) {
            // width: 212px;
            display: flex;
            .menu-list {
                border-right: 1px solid rgba(222, 228, 241, 1);
                height: 100%;
                padding-top: 20px;
                ul {
                    li {
                        font-size: 12px;
                        list-style: none;
                        height: 56px;
                        // width: 90px;
                        width: 70px;
                        color: #333;
                        font-weight: 500;
                        cursor: pointer;
                        border-radius: 0 46% 46% 0;
                        display: flex;
                        align-items: center;
                        justify-content: center;
                        flex-direction: column;
                    }
                    &>.normal-menu-bg{
                        color: #999999;
                    }
                    & > .menu-bg {
                        color: #72b22a;
                        background: #F5F7FA;
                        position: relative;
                        .choose-tag{
                            width: 6px;
                            height: 20px;
                            background: #72b22a;
                            border-radius: 3px;
                            position: absolute;
                            top: 18px;
                            left: 0;
                        }
                    }
                    &> .light-menu-bg{
                        color: #333333;
                    }
                    & >.first-menu-bg{
                        color: #fff;
                        background: #72b22a;
                    }
                }
            }
            .menu-list:hover + .menu-card {
                width: 142px;
                transition: all 300ms;
            }
            .menu-card:hover {
                width: 142px;
            }
            .menu-card {
                position: fixed;
                left: 70px;
                z-index: 10;
                top: 60px;
                transition: all 300ms;
                box-shadow: 2px 0px 8px 0px rgba(45, 113, 183, 0.15);
                height: 100%;
                width: 0px;
                // width: 100%;
                padding-top: 20px;
                background: #fff;
                overflow: auto;
                padding-bottom: 60px;
                & > div {
                    cursor: pointer;
                    height: 138px;
                    width: 100%;
                    padding: 10px 16px 10px 16px;
                    img {
                        width: 110px;
                        height: 83px;
                        box-shadow: 0 1px 4px 0 rgb(0 0 0 / 20%);
                    }
                    p {
                        text-align: center;
                        width: 110px;
                        margin-top: 10px;
                        word-break: break-all;
                        word-wrap: break-word;
                        white-space: nowrap;
                        text-overflow: ellipsis;
                        overflow: hidden;
                    }
                }
                .menu-card-bg {
                    background:rgba(0, 0, 0, 0.15);
                }

            }
        }
        & > div:nth-child(2) {
            flex: 1;
            .page-content {
                width: calc(100vw - 379px);
                position: relative;
                & > .btns-look {
                    position: absolute;
                    right: 12px;
                    bottom: 12px;
                }
                & > .page-html-video > .a-edit-content {
                    height: calc(100vh - 60px);
                    overflow: auto;
                    .page-html-video {
                        width: 100%;
                        height: 100%;
                    }
                } 
            }
        }
        & > div:nth-child(3) {
            // width: 310px;
            background: #FFF;
        }
      }
  }
  @media screen and (max-width: 1280px){
    .paper__update__container {
      .content{
        width: 100%;
      }
    }
  }
